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OfflineShiro
Padwon
I'm a teapot User Gallery


Registered: 06/16/14
Posts: 187
Last seen: 2 years, 5 months
Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice?
    #27506581 - 10/16/21 11:47 AM (2 years, 6 months ago)

So I’ve come across a good deal for a hepa filter. It’s 22x43x5. Specs are in the picture. Will this suffice for laminar flow?



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Let’s cultivate Agarikon!

Edited by Shiro (10/16/21 01:51 PM)

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InvisibleHugeShroom
Muschis ftw
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Registered: 01/20/13
Posts: 175
Loc: Hamburg, Germany
Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: Shiro]
    #27507497 - 10/17/21 05:09 AM (2 years, 6 months ago)

Congratulations! .. But what is a HEPA filter for? :sealien:

edit: cool avatar btw

Edited by HugeShroom (10/17/21 05:10 AM)

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Offlinegt40
I will proof smthng
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Registered: 09/17/12
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Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: Shiro]
    #27507808 - 10/17/21 11:09 AM (2 years, 6 months ago)

Quote:

Shiro said:
So I’ve come across a good deal for a hepa filter. It’s 22x43x5. Specs are in the picture. Will this suffice for laminar flow?





99.995% - so yes.

check this to get proper fan for you filter https://www.shroomery.org/forums/showflat.php/Number/26679345

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OfflineShiro
Padwon
I'm a teapot User Gallery


Registered: 06/16/14
Posts: 187
Last seen: 2 years, 5 months
Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: HugeShroom]
    #27508932 - 10/18/21 10:56 AM (2 years, 6 months ago)

Gong to be making a Hepa flow Hood with this puppy so that I may do my sterile work in front of a clean laminar flow of air. This entails building a box around the filter, and attaching a fan to push air thru it so that you can work in front of clean air. I have done all my work in a SAB (still air box) up until now, which was fine when doing culture work and grain inoculation, but now that I’ve moved to 5 pound production blocks, 25 at once, it took me over an hour to do something that should have only taken 15 min. I currently can only fit 2 bags in my SAB at once and than have to remove from the SAB to close bags with an impulse sealer. Honestly I haven’t gotten any Contams doing it this “ghetto” way. And by no means do I think a hepa flow hood is “necessary” for any sterile work. Technique will trump technology and tools any day. But since I am ramping up to commercial levels I need some proper infrastructure to really move smoothly and not waste time...


--------------------
Let’s cultivate Agarikon!

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OfflineJawn849
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Registered: 02/12/13
Posts: 45
Last seen: 3 months, 11 days
Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: Shiro]
    #27510520 - 10/19/21 06:18 PM (2 years, 6 months ago)

Is this an FFU? I didnt think building a box was required for FFU type HEPA filters. correct me if im wrong here

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OfflineShiro
Padwon
I'm a teapot User Gallery


Registered: 06/16/14
Posts: 187
Last seen: 2 years, 5 months
Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: Jawn849]
    #27510584 - 10/19/21 07:26 PM (2 years, 6 months ago)

It’s not an FFU unit, just the hepa filter. I’ll need to build a space for a plenum of air behind it to evenly force air through with a fan.


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Let’s cultivate Agarikon!

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InvisibleQM33
(NOT A PUPPET!) ❤❤❤❤❤
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Registered: 04/09/20
Posts: 4,739
Loc: Oregon
Re: Just ordered a hepa filter, interesting specs I’m not accustomed to. Will this suffice? [Re: Shiro]
    #27510974 - 10/20/21 06:23 AM (2 years, 6 months ago)

Ide live to be corrected, but i dont think you need a plenum, well probably not as big as you may cobsider, as long as the fans dont point directly at the filter, a very smalle amount of soace will suffice.
I sai this because i have a FFU. And seen others, my ffu ha 4 fans all kinf of pointing towards the center, and they all have probably a 2-3" area thry occupy behind the filter.
The flow hood i made is like a big 2' cube cuase i hella overdod the plenum ha.
Food4thot

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